A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5950-01-142-2224
NSN 5935-01-126-8283
NSN 6645-01-254-7980
NSN 5910-00-857-6111
NSN 5996-01-462-1631
NSN 6105-01-236-5290
NSN 6135-00-816-9052
NSN 5935-01-471-2920
NSN 5855-01-441-3189
NSN 5996-00-881-8707
NSN 6130-01-068-8151
NSN 6135-00-628-1142